1. Product Overview
The NASTIMA EF37-LI1050-NA is a high-capacity 3.7V 10500mAh Lithium-ion rechargeable battery designed as a replacement for various eufy smart home devices. This battery provides reliable power for your compatible eufy S330, S230, S220, and E330 Video Smart Lock 3-in-1 and Smart Drop doorbells.
Image: The NASTIMA Lithium-ion Battery Pack (Model: EF37-LI1050-NA) shown with its included USB-C charging cable. The battery label displays warnings and specifications.
2. Specifications
Image: Detailed specifications of the NASTIMA battery, including voltage, capacity, dimensions, and weight.
| Parameter | Value |
|---|---|
| Brand Name | NASTIMA |
| Model Number | EF37-LI1050-NA |
| Type | Li-Ion |
| Nominal Voltage | 3.6V / 3.7V |
| Nominal Capacity | 10500mAh |
| Energy | 38.85Wh |
| Dimensions (L*W*H) | 77.5*59*21mm (2.97*2.32*0.83in) |
| Weight | 170g (0.37lb) |
| Charging Input | 5V 2A MAX (USB-C) |
| Certification | CE, FCC |
| Replacement Battery | Yes |
3. Compatible Models
This NASTIMA battery is fully compatible with the following eufy devices:
- eufy S330 Video Smart Lock
- eufy S230 Video Smart Lock
- eufy S220 Video Smart Lock
- eufy E330 Video Smart Lock 3-in-1
- eufy Smart Drop doorbell
Image: Visual representation of the NASTIMA battery and its compatible eufy smart lock and doorbell models.
4. Safety Information
The NASTIMA battery is manufactured with Grade A+ cells and incorporates multiple safety protections. Please adhere to the following guidelines for safe use:
Image: Graphic detailing the built-in safety features of the NASTIMA battery.
Built-in Protections:
- Over-Charge Protection: Prevents the battery from being charged beyond its safe voltage limit.
- Over-Discharge Protection: Protects the battery from being discharged below its safe voltage limit.
- Short Circuit Protection: Automatically cuts off power in case of a short circuit.
- Over-Heating Protection: Monitors and prevents the battery from reaching unsafe temperatures.
General Warnings:
- Do not disassemble, crush, or puncture the battery.
- Do not short external contacts.
- Do not dispose of the battery in fire or water.
- Do not continue to use the battery if it bulges or shows any signs of damage.
- Keep out of reach of children.
5. Charging Instructions
To charge your NASTIMA battery, use the provided 30CM USB-C charging cable and a compatible 5V 2A MAX power adapter (not included). The battery features an LED indicator to show its charging status:
Image: Visual guide to the battery's LED charging indicator.
- Charging: The LED indicator will display a Green Flashing light.
- Fully Charged: The LED indicator will show a Solid Green light.
Ensure the battery is fully charged before its first use for optimal performance.
6. Installation and Usage
This battery is designed for easy installation into compatible eufy devices. Follow the instructions provided with your eufy device for specific battery compartment access and replacement procedures.
Image: The NASTIMA battery being installed into a eufy doorbell, demonstrating typical usage.
General Installation Steps:
- Locate the battery compartment on your eufy device.
- Carefully remove the old battery, if present.
- Insert the NASTIMA battery, ensuring the contacts align correctly.
- Close the battery compartment securely.
- Power on your eufy device and verify battery recognition.
7. Maintenance
- Store the battery in a cool, dry place when not in use.
- Avoid exposing the battery to extreme temperatures (hot or cold).
- Do not store the battery fully discharged for extended periods. Charge it periodically if stored for a long time.
- Clean the battery contacts with a dry cloth if necessary to ensure good connection.
8. Troubleshooting
- Battery not charging:
- Ensure the USB-C cable is securely connected to both the battery and the power adapter.
- Verify that the power adapter is functioning correctly and provides 5V 2A MAX output.
- Check for any visible damage to the cable or battery port.
- Device not powering on with new battery:
- Ensure the battery is fully charged.
- Verify that the battery is inserted correctly with contacts aligned.
- Check if the eufy device itself has any issues (refer to your eufy device's manual).
- Battery life shorter than expected:
- Ensure the battery has been fully charged.
- Operating in extremely cold temperatures can reduce battery performance.
- High usage frequency of the eufy device (e.g., frequent motion detection, live view) can deplete the battery faster.
9. User Tips
Based on general best practices for Lithium-ion batteries:
- For optimal battery longevity, avoid completely draining the battery before recharging.
- Always use a reliable 5V 2A power source for charging to ensure efficient and safe charging.
- If you notice any unusual heat or swelling from the battery, discontinue use immediately and dispose of it properly according to local regulations.
10. Warranty & Support
For warranty information or technical support regarding your NASTIMA battery, please contact the manufacturer directly through their official website or the seller from whom you purchased the product. Keep your proof of purchase for warranty claims.